22615133 has 4 divisors (see below), whose sum is σ = 22933728. Its totient is φ = 22296540.

The previous prime is 22615127. The next prime is 22615139. The reversal of 22615133 is 33151622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22615127) and next prime (22615139).

It is a cyclic number.

It is not a de Polignac number, because 22615133 - 2⁶ = 22615069 is a prime.

It is a super-2 number, since 2×22615133² = 1022888481215378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22615099 and 22615108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22615139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159191 + ... + 159332.

It is an arithmetic number, because the mean of its divisors is an integer number (5733432).

Almost surely, 2^22615133 is an apocalyptic number.

It is an amenable number.

22615133 is a deficient number, since it is larger than the sum of its proper divisors (318595).

22615133 is an equidigital number, since it uses as much as digits as its factorization.

22615133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318594.

The product of its digits is 1080, while the sum is 23.

The square root of 22615133 is about 4755.5370884896. The cubic root of 22615133 is about 282.7915198848.

Adding to 22615133 its reverse (33151622), we get a palindrome (55766755).

The spelling of 22615133 in words is "twenty-two million, six hundred fifteen thousand, one hundred thirty-three".